JP2008031742A

JP2008031742A - Support of protective body against avalanche/rock fall and the like, and auxiliary implement for manufacture of the support

Info

Publication number: JP2008031742A
Application number: JP2006207053A
Authority: JP
Inventors: Yutaka Hosokawa; 細川　　豊
Original assignee: Raiteku KK; Kaihatsu Concrete KK; Wakow Bussan Co Ltd
Current assignee: Raiteku KK; Kaihatsu Concrete KK; Wakow Bussan Co Ltd
Priority date: 2006-07-28
Filing date: 2006-07-28
Publication date: 2008-02-14
Anticipated expiration: 2026-07-28
Also published as: JP4656606B2

Abstract

PROBLEM TO BE SOLVED: To provide a support of a protective body against an avalanche/a rock fall and the like which can be easily transported and carried in, is excellent in construction performance, and can be manufactured in advance by standardizing an upper portion of the support. SOLUTION: In this support 2, a lower portion 2S of the support which is fixed to a foundation, and an upper portion 2U of the support which is provided above the lower portion 2S of the support are connected to each other. A receiving tube 11 for inserting and fixing the lower end of the upper portion 2U of the support into the receiving tube 11 is provided on the upside of the lower portion 2S of the support. The lower end of the upper portion 2U of the support is inserted and fixed into the receiving tube 11, so that the upper and lower portions 2U and 2S of the support can be integrated to each other. The lower portion 2S of the support is fixed to an installation place, so that the support 2 of the guard fence can be erected. Since the receiving tube 11 is integrally provided in advance in the lower portion 2S of the support, the upper portion and the lower portion 2U and 2S of the support can be firmly integrated to each other by securing the strength of joining the receiving tube 11 and the upper portion 2U of the support. COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、防護柵等の落石・雪崩等防護体の支柱とその製造用補助具に関する。 The present invention relates to a support column for a protective body such as a rockfall or avalanche such as a protective fence and an auxiliary tool for manufacturing the column.

従来から山腹の斜面部等に構築して落石や積雪等を受け止めて道路等への落下、流入を防止する防護柵が知られており、例えば、山腹の斜面部に間隔を置いて縦孔を穿孔し、この縦孔に建て込んだパイプ支柱を並設すると共に、これら各パイプ支柱に複数段のケーブルとともに金網を張設した落石等の防護柵（例えば特許文献１）が提案されている。 Conventionally, protective fences have been known that are constructed on slopes of mountainsides to prevent falling or inflowing on roads etc. by receiving falling rocks and snow, etc.For example, vertical holes are provided at intervals on slopes of mountainsides. There has been proposed a protective fence such as a rock fall (for example, Patent Document 1) in which pipe struts that are drilled and built in the vertical holes are arranged side by side, and a wire mesh is stretched along with a plurality of cables on each of the pipe struts.

また、設定面に間隔をおいて穿孔した複数の縦孔に支柱を建て込み、これら支柱の間に上下に間隔を置いて架設する複数の索条体と共に防護用網体を張設した防護柵（例えば特許文献２）や、セメントを混合した混合材である無収縮モルタルを充填した落石・雪崩等保護構造物用充填鋼管を用い、この充填鋼管を基礎に固定する（例えば特許文献３）ものが知られている。 In addition, a protective fence in which a support net is installed in a plurality of vertical holes drilled at intervals on the setting surface, and a protection net is stretched together with a plurality of cable bodies that are installed with a vertical space between the support columns. (For example, Patent Document 2), or a filled steel pipe for protection structures such as rock fall and avalanche filled with non-shrink mortar which is a mixed material mixed with cement, and this filled steel pipe is fixed to the foundation (for example, Patent Document 3) It has been known.

また、落石などの衝撃を摩擦エネルギーに変換して吸収するものとして、所定の間隔で支柱を設け、各支柱の間に水平ロープ材を水平方向のスライドを許容した状態で係留し、水平ロープ材の両端は固定し、各支柱間を水平ロープ材に掛止させたワイヤ製のネットで遮蔽し、前記水平ロープ材の途上にロープ材を重合させて形成した余長部と、余長部を一定の力で挟持する挟持具とにより、水平ロープ材に設定張力以上の張力が作用したとき、水平ロープ材が一定の摩擦力を保持したまま余長部が伸長して張力を吸収する緩衝部を形成した衝撃吸収柵（例えば特許文献４、特許文献５）が提案されている。 In addition, as a means to absorb impacts such as falling rocks by converting them into frictional energy, support columns are provided at predetermined intervals, and horizontal rope materials are moored in a state that allows horizontal sliding between each support column. Both ends of the cable are fixed, shielded between wires by a wire net hooked on a horizontal rope material, and an extra length portion formed by polymerizing the rope material in the middle of the horizontal rope material, and an extra length portion. A buffer that absorbs tension by extending the extra length of the horizontal rope material while maintaining a constant frictional force when a tension higher than the set tension is applied to the horizontal rope material due to the clamping device that clamps with a constant force A shock absorbing fence (for example, Patent Document 4 and Patent Document 5) in which a slab is formed has been proposed.

また、衝撃吸収杭において、埋設用の筒状体と、上部が地上に突出するように該筒状体に内挿される杭本体と、該筒状体と該杭本体との間に充填される充填材とを備えたもの（例えば特許文献６）がある。
特開平７−１９７４２３号公報特開２００２−１１５２１３号公報特開２００２−２６６３２１号公報特開平６−１９７４２３号公報特開平６−３３７０９号公報特開平９−２０３０３６号公報 In addition, in the shock absorbing pile, a buried cylindrical body, a pile main body inserted into the cylindrical body so that the upper part protrudes on the ground, and a space between the cylindrical body and the pile main body are filled. There exist some (for example, patent documents 6) provided with the filler.
JP-A-7-197423 JP 2002-115213 A JP 2002-266321 A JP-A-6-197423 JP-A-6-33709 JP-A-9-203036

上記特許文献３の防護柵では、斜面に構築した防護柵によって積雪や雪崩等を効果的に受け止めることで、落石や雪崩といった自然災害を抑制することができ、また、特許文献４及び５の衝撃吸収柵では、衝撃を支柱に伝える前に水平ロープ材の一部に形成した緩衝部の摺動により衝撃を吸収することができ、従来に比較して支柱の荷重負荷を軽減できる。 In the protective fence of Patent Document 3, natural disasters such as falling rocks and avalanches can be suppressed by effectively receiving snow and avalanches by the protective fence constructed on the slope. In the absorption fence, the shock can be absorbed by sliding of the buffer portion formed in a part of the horizontal rope material before the impact is transmitted to the support, and the load load of the support can be reduced as compared with the conventional case.

ところで、緩衝部を設けても、この種の防護柵において、支柱の強度が荷重に対する性能に大きく寄与し、支柱の強度を向上するには、支柱自体とともに取付強度を向上する必要がある。このため、基礎に形成した縦孔に支柱の下部を建て込み、所定の取付強度を得るようにしている。 By the way, even if it provides a buffer part, in this kind of guard fence, in order to improve the strength of a support | pillar, the intensity | strength of a support | pillar greatly needs to improve attachment strength with support | pillar itself. For this reason, the lower part of a support | pillar is built in the vertical hole formed in the foundation, and predetermined attachment strength is obtained.

そして、防護柵の設定条件により、支柱が長尺となる場合があり、例えば、雪崩予防柵などでは、積雪に応じた上部柵高さとこれに対応した下部部分が必要となり、支柱が長尺となる。一方、鋼管などを支柱の材料に用いる場合、防錆などの面からメッキ処理が施される。 And depending on the setting conditions of the protective fence, the pillar may be long.For example, in an avalanche prevention fence, the upper fence height corresponding to snow accumulation and the lower part corresponding to this are required, and the pillar is long. Become. On the other hand, when a steel pipe or the like is used as the material for the support, plating is performed from the aspect of rust prevention or the like.

そのようなメッキ処理は、メッキ槽に支柱を漬ける所謂どぶ漬けが行われるが、長尺な支柱を処理できるメッキ層が少なく、支柱が長くなると、製作工程と製作コストの面で不利になる。しかし、上記特許文献のものは、いずれも支柱又は杭に一体物を用いており、このような問題が予想される。 In such plating treatment, so-called soaking is performed in which a support is immersed in a plating tank, but there are few plating layers capable of processing a long support, and if the support becomes longer, it is disadvantageous in terms of manufacturing process and manufacturing cost. However, all of the above-mentioned patent documents use an integrated object for a support or a pile, and such a problem is expected.

加えて、メッキ槽内の高温のメッキ液に支柱を漬けるため、熱影響により支柱に歪みが発生すると、製品誤差が大きくなる。さらに、長尺な支柱は、車載寸法に制限を受け易いと共に、現場搬入時にも制約を受け易く、施工性の低下を招き易い。 In addition, since the support is immersed in the high-temperature plating solution in the plating tank, if the support is distorted due to thermal effects, the product error increases. In addition, the long support column is easily limited by the in-vehicle dimensions, and is also easily restricted at the time of carrying in the field, so that the workability is likely to be deteriorated.

一方、製造面から見ると、支柱の使用される条件や場所などによって支柱の長さが異なる場合が多く、支柱上部は標準寸法に設定できても、地山に建て込む支柱下部の長さを、現場に合わせて変えるため、標準寸法で対応することができず、その都度、異なる長さの支柱を製造する必要がある。 On the other hand, when viewed from the manufacturing side, the length of the column often varies depending on the conditions and place where the column is used. In order to change according to the site, it is not possible to cope with standard dimensions, and it is necessary to manufacture struts of different lengths each time.

このため、支柱は、多品種少量生産となり、また、予め標準品を製造しておくことができないため、納期遅れやコストアップを招く問題がある。 For this reason, there is a problem in that the support column is produced in a large variety and in small quantities, and a standard product cannot be manufactured in advance, resulting in a delay in delivery and an increase in cost.

そこで、本発明は、支柱の運搬及び搬入が容易で、施工性に優れ、且つ支柱上部を標準化して製造しておくことができる雪崩・落石等防護体の支柱とその製造用補助具を提供することを目的とする。 Therefore, the present invention provides a support column for an avalanche, rockfall, and other protective body that can be easily transported and carried in, has excellent workability, and can be manufactured by standardizing the upper part of the support column and its manufacturing aid. The purpose is to do.

請求項１の発明は、基礎に固定する支柱下部と、この支柱下部の上部に設ける支柱上部とを連結した支柱において、前記支柱下部の上側に前記支柱上部の下端を挿入固定する受筒部を設けたものである。 According to the first aspect of the present invention, there is provided a support column portion for connecting and fixing the lower end of the upper portion of the support column to the upper side of the lower portion of the support column. It is provided.

また、請求項２の発明は、前記受筒部に挿入した前記支柱下部の外面と前記受筒部の内面との間に充填した接合剤により、前記支柱下部と前記支柱上部を接合したものである。 The invention according to claim 2 is the one in which the lower column and the upper column are bonded by a bonding agent filled between the outer surface of the lower column and the inner surface of the receiving tube inserted into the receiving tube. is there.

また、請求項３の発明は、前記支柱下部と前記受筒部とを鍔継手で接合したものである。 The invention of claim 3 is such that the lower portion of the support column and the receiving tube portion are joined by a flange joint.

また、請求項４の発明は、前記受筒部内に前記支柱上部の下端と前記支柱下部の上端とを配置し、これら支柱上部の下端と前記支柱下部の上端とに対応して、前記受筒部に肉厚部を形成したものである。 According to a fourth aspect of the present invention, the lower end of the upper portion of the support column and the upper end of the lower portion of the support column are arranged in the receiving tube portion, and the receiving tube corresponds to the lower end of the upper portion of the support column and the upper end of the lower portion of the support column A thick part is formed in the part.

また、請求項５の発明は、前記支柱下部は内部に充填材が充填され、前記支柱下部の上端は前記受筒部内に位置し、前記受筒部内に挿脱可能な筒体と、この筒体の下端を塞ぐ蓋体と、この蓋体の下面に設けられ前記支柱下部の上端に当接して該支柱下部の上部開口を塞ぐ当接部と、前記蓋体に貫通形成され前記筒体内と前記支柱下部の内部とを連通可能な充填孔とを備えるものである。 According to a fifth aspect of the present invention, the lower portion of the support column is filled with a filler, the upper end of the lower portion of the support column is located in the receiving tube portion, and a cylindrical body that can be inserted into and removed from the receiving tube portion. A lid that closes the lower end of the body, an abutting portion that is provided on the lower surface of the lid and abuts the upper end of the lower part of the column and closes the upper opening of the lower part of the column; A filling hole capable of communicating with the inside of the lower portion of the column is provided.

請求項１の構成によれば、受筒部に前記支柱上部の下端を挿入固定することにより、支柱上部と支柱下部とを一体化することができ、その支柱下部を設置場所に固定することにより、防護体の支柱を立設することができる。また、支柱下部に予め受筒部が一体に設けられているため、受筒部と支柱上部との接合強度を確保することにより、支柱上部と支柱下部とを強固に一体化できる。 According to the configuration of the first aspect, by inserting and fixing the lower end of the upper portion of the support column into the receiving tube portion, the upper portion of the support column and the lower portion of the support column can be integrated, and by fixing the lower portion of the support column to the installation location. , The support column can be erected. In addition, since the receiving tube portion is integrally provided in advance at the lower portion of the column, the upper portion of the column and the lower portion of the column can be firmly integrated by securing the bonding strength between the receiving tube portion and the upper portion of the column.

このようにして、長尺な支柱を、支柱下部と支柱上部に分けて運搬、搬入することができ、現場での据付作業性を向上することができる。また、支柱をメッキ処理する場合では、一体物より支柱上部及び支柱下部は短くなるため、そのメッキ処理を容易に行うことができる。さらに、支柱上部と支柱下部とに分割することにより、支柱上部を標準化して予め製造しておくことができる。 In this way, a long column can be transported and carried in divided into a column lower part and a column upper part, and installation workability at the site can be improved. Further, in the case where the support is plated, the upper part of the support and the lower part of the support are shorter than the single body, so that the plating process can be easily performed. Furthermore, the upper part of a support | pillar can be standardized and manufactured beforehand by dividing | segmenting into a support | pillar upper part and a support | pillar lower part.

また、請求項２の構成によれば、接合剤により、受筒部に支柱下部を所定強度で接合することができる。 Moreover, according to the structure of Claim 2, a support | pillar lower part can be joined to a receiving cylinder part with predetermined intensity | strength with a joining agent.

また、請求項３の構成によれば、鍔継手により、支柱下部と支柱上部とを仮接合できる。 Moreover, according to the structure of Claim 3, a support | pillar lower part and a support | pillar upper part can be temporarily joined by a gutter joint.

また、請求項４の構成では、支柱上部の下端と前記支柱下部の上端との間で支柱は不連続となるが、この箇所に対応して、受筒部に肉厚部を形成することにより、強度を確保することができる。 Moreover, in the structure of Claim 4, although a support | pillar becomes discontinuous between the lower end of the support | pillar upper part and the upper end of the said support | pillar lower part, by forming a thick part in a receiving cylinder part corresponding to this location , Strength can be ensured.

また、請求項５の構成では、筒体を受筒部の上部開口に挿入し、この上部開口を当接部により塞ぐ。そして、筒体内に充填材を挿入することにより、支柱下部内に充填材が充填され、このように受筒部の開口から離れた下方に位置する支柱下部の上部開口に、充填材を簡便且つ確実に充填することができる。 According to the fifth aspect of the present invention, the cylinder is inserted into the upper opening of the receiving cylinder portion, and the upper opening is closed by the contact portion. Then, by inserting the filler into the cylindrical body, the filler is filled in the lower portion of the support column, and thus the filler is simply and easily inserted into the upper opening of the lower portion of the support column that is positioned away from the opening of the receiving tube portion. It can be filled reliably.

本発明における好適な実施の形態について、添付図面を参照しながら詳細に説明する。なお、以下に説明する実施の形態は、特許請求の範囲に記載された本発明の内容を限定するものではない。また、以下に説明される構成の全てが、本発明の必須要件であるとは限らない。各実施例では、従来とは異なる雪崩・落石等防護体の支柱とその製造用補助具を採用することにより、従来にない雪崩・落石等防護体の支柱とその製造用補助具が得られ、その雪崩・落石等防護体の支柱とその製造用補助具を夫々記述する。 Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention. In each example, by adopting an avalanche / falling rock protector post and its manufacturing aid that are different from conventional ones, an avalanche / falling stone protector post and its manufacturing aid are obtained, Describe the props of the protective body such as avalanches and falling rocks and the auxiliary tools for manufacturing them.

以下、本発明の防護柵の実施例１について図１〜図１０を参照して説明する。落石・雪崩等防護柵１は、複数の支柱２，２…を間隔をおいて並設し、それら支柱２，２…間に横ロープ材３，３…を多段に設けると共に、それら支柱２，２…間を網体４により閉塞してなる。 Hereinafter, Embodiment 1 of the guard fence of the present invention will be described with reference to FIGS. The protective fence 1 for falling rocks, avalanches, etc. has a plurality of support columns 2, 2... Arranged at intervals, and horizontal rope members 3, 3. 2... Are closed by a net 4.

また、図中９は、支柱２の上部と、防護壁１の前側の斜面Ｙとを連結する控えロープ材であり、この控えロープ材９の一端を前記支柱２の上部に連結し、控えロープ９の他端を前記斜面Ｙにアンカー10により固定している。 Reference numeral 9 in the figure denotes a retaining rope member that connects the upper portion of the support column 2 and the slope Y on the front side of the protective wall 1. One end of the retaining rope member 9 is connected to the upper portion of the support column 2, The other end of 9 is fixed to the slope Y by an anchor 10.

次に、前記支柱２の詳細について説明すると、その支柱２は、支柱上部２Ｕと支柱下部２Ｓとを連結してなり、それら支柱下部２Ｓと支柱上部２Ｕには、一例として、二重鋼管からなる耐荷材101が用いられる。 Next, the details of the support column 2 will be described. The support column 2 is formed by connecting a support column upper part 2U and a support column lower part 2S, and the support column lower part 2S and the support column upper part 2U are made of a double steel pipe as an example. A load bearing material 101 is used.

図６〜図８に示すように、前記耐荷材101は、断面円形の外側鋼管102内に間隔を置いて断面円形の内側鋼管103を挿入配置し、それら外側鋼管102と内側鋼管103との間に、複数の補強鋼棒104を配置し、この補強鋼棒104を配置した外側鋼管102と内側鋼管103との間の外側充填空間105に、充填材である無収縮モルタル106を充填し、また、内側鋼管103の内部の内側充填空間107にも、無収縮モルタル106を充填して養生したものである。 As shown in FIGS. 6 to 8, the load-bearing material 101 has an inner steel tube 103 having a circular cross section inserted and arranged in an outer steel tube 102 having a circular cross section, and a space between the outer steel pipe 102 and the inner steel pipe 103. In addition, a plurality of reinforcing steel bars 104 are arranged, and an outer filling space 105 between the outer steel pipe 102 and the inner steel pipe 103 in which the reinforcing steel bars 104 are arranged is filled with a non-shrink mortar 106 as a filler. The inner filling space 107 inside the inner steel pipe 103 is also filled with the non-shrink mortar 106 and cured.

前記補強鋼棒104は、異形鋼棒であり、その外周に凹凸として台形螺子部111を長さ方向全長に有する。また、その補強鋼棒104の外周には、長さ方向に連続する平面部112，112が断面両側に設けられ、平面部112においては前記台形螺子部111が切り取られており、直径方向両側の平面部112，112は平行をなす。 The reinforcing steel bar 104 is a deformed steel bar, and has a trapezoidal screw part 111 as an unevenness on the outer periphery thereof in the entire length direction. In addition, on the outer periphery of the reinforcing steel rod 104, plane portions 112, 112 continuous in the length direction are provided on both sides of the cross section, and the trapezoidal screw portion 111 is cut off on the plane portion 112, and both sides of the diametrical direction are provided. The flat portions 112 and 112 are parallel.

前記補強鋼棒104の平面部112，112の間隔は、前記外側鋼管102の内面と内側鋼管103の外面との間隔より僅かに狭く設定されている。そして、外側充填空間105には、３本以上の補強鋼棒104が配置され、この例では、外側充填空間105には、周方向等間隔に４本の補強鋼棒104，104Ａ，104Ａ，104Ａを配置し、隣り合う補強鋼棒104，104Ａ，104Ａ，104Ａが円周方向９０度の角度をなす位置にある。尚、補強鋼棒104Ａは、配置位置が異なる以外は、前記補強鋼棒104と同一構成である。さらに、前記補強鋼棒104の隣りに、補強鋼棒104，104を配置して３本の補強鋼棒104，104，104を円周方向３０度の角度をなす位置に並べる。 The interval between the flat portions 112 of the reinforcing steel rod 104 is set slightly narrower than the interval between the inner surface of the outer steel tube 102 and the outer surface of the inner steel tube 103. Three or more reinforcing steel rods 104 are arranged in the outer filling space 105. In this example, four reinforcing steel rods 104, 104A, 104A, 104A are arranged in the outer filling space 105 at equal intervals in the circumferential direction. And the adjacent reinforcing steel bars 104, 104A, 104A, 104A are at a position that makes an angle of 90 degrees in the circumferential direction. The reinforcing steel rod 104A has the same configuration as the reinforcing steel rod 104 except for the arrangement position. Further, the reinforcing steel rods 104, 104 are arranged next to the reinforcing steel rod 104, and the three reinforcing steel rods 104, 104, 104 are arranged at an angle of 30 degrees in the circumferential direction.

次に、前記耐荷材101の製造方法を説明すると、まず、図７に示すように、内側鋼管103の外面に、前記補強鋼棒104，104，104，104Ａ，104Ａ，104Ａを固定する。この場合、一方の平面部112を内側鋼管103の外面に沿わせて溶接などで固定する。このようにして、補強鋼棒104，104，104，104Ａ，104Ａ，104Ａを固定した内側鋼管103を、外側鋼管102内に挿入する。この場合、内側鋼管103は、複数の補強鋼棒104，104，104，104Ａ，104Ａ，104Ａの平面部112を外側鋼管102の内面に沿わせて、外側鋼管102内に内側鋼管103を挿入することができる。そして、挿入後、鋼管102，103の一端側を上に向けて配置し、その上側の開口から外側充填空間105及び内側充填空間107に無収縮モルタル106を充填し、養生することにより、耐荷材101が得られる。尚、充填材を充填する前の耐荷材101に、亜鉛などの鍍金処理を施してもよい。尚、図３及び図５では、耐荷材101の内側鋼管103，補強鋼棒104，104Ａ及び無収縮モルタル106を図示省略している。 Next, the manufacturing method of the load bearing material 101 will be described. First, as shown in FIG. 7, the reinforcing steel rods 104, 104, 104, 104A, 104A, 104A are fixed to the outer surface of the inner steel pipe 103. In this case, one flat portion 112 is fixed along the outer surface of the inner steel pipe 103 by welding or the like. In this manner, the inner steel pipe 103 to which the reinforcing steel bars 104, 104, 104, 104A, 104A, 104A are fixed is inserted into the outer steel pipe 102. In this case, the inner steel pipe 103 is inserted into the outer steel pipe 102 with the flat portions 112 of the plurality of reinforcing steel rods 104, 104, 104, 104 A, 104 A, 104 A along the inner surface of the outer steel pipe 102. be able to. Then, after insertion, the steel pipes 102 and 103 are arranged with one end side facing upward, and the non-shrinkable mortar 106 is filled into the outer filling space 105 and the inner filling space 107 from the upper opening, and the load-carrying material is cured. 101 is obtained. Note that the load-bearing material 101 before filling with the filler may be plated with zinc or the like. 3 and 5, the inner steel pipe 103, the reinforcing steel bars 104 and 104A, and the non-shrink mortar 106 of the load bearing material 101 are not shown.

図１及び図３などに示すように、前記支柱下部２Ｓの上部には、鋼管からなる受筒部11が一体に設けられ、この受筒部11は上端が開口している。この受筒部11の長さ方向中央に、前記支柱下部２Ｓの上端を配置した状態で、前記受筒部11の下端11Ｓを支柱下部２Ｓの外面に溶着し、且つ、支柱下部２Ｓの外面と受筒部11の内面との間に隙間Ｓが設けられ、この隙間Ｓの寸法は１０ミリ以下である。すなわち受筒部11の内径は支柱下部２Ｓの外径より大きく形成されている。尚、支柱下部２Ｓは受筒部11を設けた後、鍍金処理され、支柱上部２Ｕは鍔継手13を設けた後、鍍金処理される。 As shown in FIGS. 1 and 3 and the like, a receiving tube portion 11 made of a steel pipe is integrally provided on the upper portion of the lower support column 2S, and the upper end of the receiving tube portion 11 is open. In the state where the upper end of the lower support column 2S is arranged at the center in the length direction of the receiving tube portion 11, the lower end 11S of the receiving tube portion 11 is welded to the outer surface of the lower support column 2S, and the outer surface of the lower support column 2S A gap S is provided between the inner surface of the receiving tube portion 11 and the dimension of the gap S is 10 mm or less. That is, the inner diameter of the receiving tube portion 11 is formed to be larger than the outer diameter of the column lower portion 2S. The support lower part 2S is plated after the receiving tube portion 11 is provided, and the support upper part 2U is plated after the plating joint 13 is provided.

前記受筒部11の上端には、鍔継手12が設けられ、この鍔継手12に対応して、前記支柱上部２Ｕの外面に鍔継手13が設けられ、この鍔継手13には、充填確認孔を兼用する複数の空気抜き孔13Ａが穿設されている。それら鍔継手12，13には円周方向等間隔にボルト挿通孔14，14が穿設されており、受筒部11に支柱上部２Ｕの下部を挿入し、それら鍔継手12，13にパッキン15を挟んで重ね合わせた状態で、ボルト挿通孔14にボルト16を挿通し、ナットを螺合して接合される。そして、鍔継手12，13を重ね合わせた状態で、支柱上部２Ｕの下端と、支柱下部２Ｓの上端との間に長さ方向の隙間ができ、この隙間Ｓは１５ミリ以下、好ましくは１０ミリ程度であるが、前記長さ方向の隙間と受筒部11と支柱上部２Ｕとの隙間Ｓにより、支柱下部２Ｓに対して、支柱上部２Ｕを角度調整することができる。この場合、例えば、鍔継手12，13間の適宜な位置に、スペーサ（図示せず）を入れることにより角度調整できる。 A saddle joint 12 is provided at the upper end of the cylinder 11, and a saddle joint 13 is provided on the outer surface of the column upper portion 2 U corresponding to the saddle joint 12. A plurality of air vent holes 13A are also formed. Bolt insertion holes 14 and 14 are bored in the flange joints 12 and 13 at equal intervals in the circumferential direction, and the lower portion of the upper column 2U is inserted into the receiving cylinder portion 11 and packing 15 is inserted into the flange joints 12 and 13. The bolts 16 are inserted into the bolt insertion holes 14 in a state of being overlapped with each other, and the nuts are screwed together to join them. Then, in the state where the flange joints 12 and 13 are overlapped, a gap in the length direction is formed between the lower end of the column upper part 2U and the upper end of the column lower part 2S, and this gap S is 15 mm or less, preferably 10 mm. However, the column upper portion 2U can be angularly adjusted with respect to the column lower portion 2S by the gap in the length direction and the gap S between the receiving tube portion 11 and the column upper portion 2U. In this case, for example, the angle can be adjusted by inserting a spacer (not shown) at an appropriate position between the flange joints 12 and 13.

また、前記受筒部11の長さ方向略中央の外面には、肉厚部17を設けている。この肉厚部17は、支柱上部２Ｕの下端と支柱下部２Ｓの上端との間の長さ方向の隙間を跨いで配置されている。尚、受筒部11，肉厚部17及び鍔継手12，13は鋼製である。 In addition, a thick portion 17 is provided on the outer surface of the receiving tube portion 11 in the center of the length direction. The thick portion 17 is disposed across the gap in the length direction between the lower end of the support column upper portion 2U and the upper end of the support column lower portion 2S. Note that the receiving tube portion 11, the thick portion 17 and the flange joints 12 and 13 are made of steel.

また、前記受筒部11の下部の両側には、前記隙間Ｓに連通する孔21，21を穿設し、これら孔21，21には雌螺子部が形成されている。その一方の孔21には、充填管22が接続されている。この充填管22の下端には略９０度に屈曲した屈曲部23が設けられ、この屈曲部23の端部が前記孔21に螺着されており、また、充填管22の直線部24は、受筒部11の外周に沿って上方に伸び、その上端は受筒部11の上端近くまで達し、上端に設けた略９０度のエルボ25により、鍔継手12の下で、充填材注入孔26が外側に向いている。また、他方の孔21には、雄螺子を有する栓体27が着脱可能に螺合される。 Further, holes 21 and 21 communicating with the gap S are formed on both sides of the lower portion of the receiving tube portion 11, and female screw portions are formed in these holes 21 and 21. A filling tube 22 is connected to one of the holes 21. A bent portion 23 bent at approximately 90 degrees is provided at the lower end of the filling tube 22, the end of the bent portion 23 is screwed into the hole 21, and the straight portion 24 of the filling tube 22 is It extends upward along the outer periphery of the receiving tube part 11, and its upper end reaches near the upper end of the receiving tube part 11, and is filled with a filler injection hole 26 under the flange joint 12 by an elbow 25 of approximately 90 degrees provided at the upper end. Is facing outwards. Further, the other hole 21 is detachably screwed with a plug 27 having a male screw.

前記隙間Ｓに充填する充填材たる接合剤18として、ベースレンジに、エポキシ樹脂、好ましくはビスフェノールＡ型エポキシ樹脂を用いたエポキシ系接着剤を用い、主剤と硬化剤とからなる二液性で、湿潤面硬化型のものを用いる。 As a bonding agent 18 as a filler to be filled in the gap S, an epoxy resin, preferably an epoxy adhesive using a bisphenol A type epoxy resin, is used as a base range. Wet surface curing type is used.

次に、前記防護柵１の施工方法などについて、支柱２を中心として説明する。まず、設置場所で、支柱下部２Ｓを建て込んだ後、支柱上部２Ｕを連結する場合について説明すると、図９などに示すように、防護柵１の設置場所である山の斜面Ｙなどに取付孔28を穿孔し、この穿孔にはボーリングが用いられ、前記取付孔28に支柱下部２Ｓを挿入して建て込む。 Next, the construction method and the like of the protective fence 1 will be described focusing on the support column 2. First, a case where the lower column 2S is installed at the installation location and then the upper column 2U is connected will be described. As shown in FIG. 9 and the like, a mounting hole is provided on the slope Y of the mountain where the protective fence 1 is installed. A boring is used for this drilling, and the support lower part 2S is inserted into the mounting hole 28 and built.

そして、取付孔28と支柱下部２Ｓとの間に隙間があれば、この隙間に取付孔用充填材29を充填して支柱下部２Ｓを設置場所に固定する。このように、支柱２の施工において、長尺な支柱２を、その支柱下部２Ｓと支柱上部２Ｕと分けて施工することができ、現場での据付作業性を向上することができる。また、無収縮モルタル６を充填する前の支柱２を、メッキ処理する場合では、一体物より支柱上部２Ｕ及び支柱下部２Ｓは短くなるため、そのメッキ処理を容易に行うことができる。 If there is a gap between the mounting hole 28 and the support column lower part 2S, the attachment hole filling material 29 is filled in this gap to fix the support column lower part 2S at the installation location. Thus, in the construction of the support column 2, the long support column 2 can be constructed separately from the support column lower part 2S and the support column upper part 2U, and the installation workability at the site can be improved. Further, in the case where the support 2 before filling with the non-shrink mortar 6 is plated, the support upper part 2U and the support lower part 2S are shorter than the integrated body, so that the plating process can be easily performed.

このように支柱下部２Ｓの施工が終わった後、連続して、あるいは時間をおいて、支柱上部２Ｕの施工を行う。まず、鍔継手12の上にパッキン15を重ね、受筒部11内に支柱上部２Ｕの下端を挿入し、鍔継手12の上に鍔継手13を重ね、ここで、上述したように、支柱上部２Ｕを調整し、鍔継手12，13をボルト16とナットで締め付けて仮固定する。そして、充填材注入孔26から接合剤18を隙間Ｓに充填する。この場合、栓体27を外して接合剤18の充填状態を確認することができ、確認後は、栓体27により孔21を塞ぐ。また、充填材注入孔26から充填された接合剤18は、受筒部11の下端の孔21から隙間Ｓに充填され、充填に伴って内部の空気は空気抜き孔13Ａから外部に排出され、また、支柱上部２Ｕの下端と支柱下部２Ｓの上端との間に充填され、受筒部11の上部まで充填される。 After the construction of the lower column 2S is finished in this way, the upper column 2U is constructed continuously or with time. First, the packing 15 is overlaid on the heel joint 12, the lower end of the upper column 2U is inserted into the receiving tube 11, and the heel joint 13 is overlaid on the heel joint 12, where, as described above, Adjust 2U and tighten the joints 12 and 13 with bolts 16 and nuts to temporarily fix them. Then, the bonding agent 18 is filled into the gap S from the filler injection hole 26. In this case, the plug 27 can be removed and the filling state of the bonding agent 18 can be confirmed. After the confirmation, the hole 21 is closed by the plug 27. Further, the bonding agent 18 filled from the filler injection hole 26 is filled into the gap S from the hole 21 at the lower end of the receiving cylinder portion 11, and the internal air is discharged to the outside through the air vent hole 13A along with the filling. The space between the lower end of the column upper part 2U and the upper end of the column lower part 2S is filled up to the upper part of the receiving tube part 11.

そして、接合剤18が硬化することにより、支柱上部２Ｕと支柱下部２Ｓとが一体化される。この場合、接合剤18による接着により、引抜力も得られるから、鍔継手12，13の接合を解除することもできる。また、接合剤18に湿潤面硬化型のエポキシ系接着剤を用いることにより、湿気処理などが難しい現場においても、施工を行うことができる。 Then, as the bonding agent 18 is cured, the support upper part 2U and the support lower part 2S are integrated. In this case, the pulling force can be obtained by bonding with the bonding agent 18, so that the joints of the flange joints 12 and 13 can be released. Further, by using a wet surface curing type epoxy adhesive as the bonding agent 18, it is possible to perform the construction even in a place where moisture treatment is difficult.

尚、設置場所で、建て込み前に、支柱下部２Ｓと支柱上部２Ｕとを連結してもよく、この場合、支柱下部２Ｓと支柱上部２Ｕとを別々に設置場所又はその近傍に搬入するから、それらの運搬及び搬入が容易となり、また、設置場所又はその近傍の作業に適した場所で、支柱下部２Ｓと支柱上部２Ｕとを一体化することができる。 It should be noted that the pillar lower part 2S and the pillar upper part 2U may be connected to each other before installation at the installation place. In this case, the pillar lower part 2S and the pillar upper part 2U are separately carried to the installation place or the vicinity thereof. It becomes easy to carry and carry them in, and the column lower part 2S and the column upper part 2U can be integrated at a place suitable for work in the installation place or in the vicinity thereof.

尚、設置場所又はその近傍以外で、工場などにおいて、支柱下部２Ｓと支柱上部２Ｕとを連結してもよい。この場合、長尺な支柱２を支柱下部２Ｓと支柱上部２Ｕとに分割して製造するため、メッキ処理などの制約を受け難く、また、作業に適した場所で製造するから、安定した製品（支柱２）を製造することができる。 Note that the column lower portion 2S and the column upper portion 2U may be connected to each other in a factory or the like other than the installation location or the vicinity thereof. In this case, since the long column 2 is divided into the column lower part 2S and the column upper part 2U and manufactured, it is not subject to restrictions such as plating treatment, and is manufactured in a place suitable for work. The strut 2) can be manufactured.

このように本実施例では、基礎たる斜面Ｙに固定する支柱下部２Ｓと、この支柱下部２Ｓの上部に設ける支柱上部２Ｕとを連結した支柱２において、支柱下部２Ｓの上側に支柱上部２Ｕの下端を挿入固定する受筒部11を設けたから、受筒部11に支柱上部２Ｕの下端を挿入固定することにより、支柱上部２Ｕと支柱下部２Ｓとを一体化することができ、その支柱下部２Ｓを設置場所に固定することにより、防護体たる防護柵１の支柱２を立設することができる。そして、支柱下部２Ｓに予め受筒部11が一体に設けられているため、受筒部11と支柱上部２Ｕとの接合強度を確保することにより、支柱上部２Ｕと支柱下部２Ｓとを強固に一体化できる。 As described above, in this embodiment, in the support column 2 in which the support column lower portion 2S fixed to the base slope Y and the support column upper portion 2U provided on the support column lower portion 2S are connected, the lower end of the support column upper portion 2U is located above the support column lower portion 2S. Since the receiving tube portion 11 for inserting and fixing the support column 11 is provided, by inserting and fixing the lower end of the column upper portion 2U to the tube receiving portion 11, the column upper portion 2U and the column lower portion 2S can be integrated. By fixing to the installation place, the support column 2 of the protective fence 1 as a protective body can be erected. Since the receiving tube portion 11 is integrally provided in advance on the support column lower portion 2S, the support column portion 2U and the support column lower portion 2S are firmly integrated with each other by securing the bonding strength between the receiving tube portion 11 and the support column upper portion 2U. Can be

このようにして、長尺な支柱２を、支柱下部２Ｓと支柱上部２Ｕに分けて運搬、搬入することができ、現場での据付作業性を向上することができる。また、支柱２をメッキ処理する場合では、一体物より支柱上部２Ｕ及び支柱下部２Ｓは短くなるため、そのメッキ処理を容易に行うことができる。さらに、支柱上部２Ｕと支柱下部２Ｓとに分割することにより、支柱上部２Ｕを標準化して予め製造しておくことができる。 In this way, the long column 2 can be transported and carried into the column lower portion 2S and the column upper portion 2U, and the installation workability at the site can be improved. Further, in the case of plating the support 2, the support upper part 2 U and the support lower part 2 S are shorter than the integrated object, so that the plating process can be easily performed. Furthermore, the support | pillar upper part 2U can be standardized and manufactured previously by dividing | segmenting into the support | pillar upper part 2U and the support | pillar lower part 2S.

また、このように本実施例では、受筒部11に挿入した支柱下部２Ｓの外面と受筒部11の内面との間に充填した接合剤18により、支柱下部２Ｓと支柱上部２Ｕを接合したから、接合剤18により、受筒部11に支柱上部２Ｕを所定強度で接合することができる。 Further, in this embodiment, the lower column 2S and the upper column 2U are bonded by the bonding agent 18 filled between the outer surface of the lower column 2S inserted into the receiving tube 11 and the inner surface of the receiving tube 11. Therefore, the upper column 2U can be bonded to the receiving tube portion 11 with a predetermined strength by the bonding agent 18.

また、このように本実施例では、支柱下部２Ｓと受筒部11とを鍔継手13，12で接合したから、鍔継手13，12により、支柱下部２Ｓと支柱上部２Ｕとを仮接合できる。 Further, in this embodiment, since the column lower part 2S and the receiving tube part 11 are joined by the flange joints 13 and 12, the column lower part 2S and the column upper part 2U can be temporarily joined by the rod joints 13 and 12.

また、このように本実施例では、受筒部11内に支柱上部２Ｕの下端と支柱下部２Ｓの上端とを配置し、これら支柱上部２Ｕの下端と支柱下部２Ｓの上端とに対応して、受筒部11に肉厚部17を形成したから、支柱上部２Ｕの下端と支柱下部２Ｓの上端との間で支柱は不連続となるが、この箇所に対応して、受筒部11に肉厚部17を形成することにより、強度を確保することができる。 In this way, in this embodiment, the lower end of the support column upper portion 2U and the upper end of the support column lower portion 2S are arranged in the receiving tube portion 11, and corresponding to the lower end of the support column upper portion 2U and the upper end of the support column lower portion 2S, Since the thick portion 17 is formed in the receiving tube portion 11, the support column is discontinuous between the lower end of the support column upper portion 2U and the upper end of the support column lower portion 2S. By forming the thick portion 17, the strength can be ensured.

また、実施例上の効果として、ベースレンジに、エポキシ樹脂、好ましくはビスフェノールＡ型エポキシ樹脂を用いたエポキシ系接着剤を用い、主剤と硬化剤とからなる二液性で、湿潤面硬化型のものを用いたから、現場での接着性を確保することができ、また、モルタル等に比べて早く接合強度を得ることができる。さらに、充填管22の下端には略９０度に屈曲した屈曲部23が設けられ、この屈曲部23の端部が前記孔21に螺着されており、また、充填管22は下部を隙間Ｓの下部に連結し、その充填材注入孔26は隙間Ｓの上部側に近い位置まで上方にあるから、充填材注入孔26に注入した接合剤18が自重により隙間Ｓへと充填される。また、従来のモルタル等の充填材に比べて、隙間Ｓは狭くて済み、隙間Ｓを１５ミリ以下としている。 In addition, as an effect on the embodiment, an epoxy resin using an epoxy resin, preferably a bisphenol A type epoxy resin, is used for the base range, and is a two-part, wet surface-curing type comprising a main agent and a curing agent. Since a material is used, the on-site adhesion can be secured, and the bonding strength can be obtained faster than mortar and the like. Further, a bent portion 23 bent at approximately 90 degrees is provided at the lower end of the filling tube 22, and an end portion of the bent portion 23 is screwed into the hole 21. Since the filler injection hole 26 is above the position close to the upper side of the gap S, the bonding agent 18 injected into the filler injection hole 26 is filled into the gap S by its own weight. In addition, the gap S is narrower than that of a conventional filler such as mortar, and the gap S is 15 mm or less.

また、耐荷材101についての実施例上の効果として、支柱上部２Ｕと支柱下部２Ｓは、耐荷材101からなり、この耐荷材101は、外側鋼管102と、この外側鋼管102内に配置される内側鋼管103と、これら外側鋼管102と内側鋼管103との間に配置した補強鋼棒104と、それら外側鋼管102と内側鋼管103との間に充填した無収縮モルタルとを備えるから、外側と内側の鋼管102，103により無収縮モルタルが拘束され、圧縮応力が向上し、外側と内側の鋼管102，103の間にある補強鋼棒104，104，104を引張領域側とすることにより、その補強鋼棒104，104，104が曲げによる引張力に抗して引張領域側の引張応力が向上し、荷重に対する応力を効果的に向上することができ、しかも、鋼管102，103と鋼棒104，104，104との組み合せにより、支柱２用の耐荷材101を簡易に構成できる。また、補強鋼棒104は、外周に凹凸たる台形螺子部111を有するから、台形螺子部111により補強鋼棒104と無収縮モルタルとの密着性が向上し、補強鋼棒104と無収縮モルタルとを一体化できる。また、補強鋼棒104は、長さ方向に連続する平面部112，112を両側に有するから、平面部112，112を用いて鋼管102，103への固定が容易となり、且つ、平面部112が面で鋼管102，103に接し、製造時における外側鋼管102への内側鋼管103の挿入作業が容易となる。また、外側鋼管102の内面又は内側鋼管103の外面に３本以上の補強鋼棒104，104Ａを固定した後、外側鋼管102内に内側鋼管103を挿入するから、補強鋼棒104，104Ａが外側と内側の鋼管のスペーサとなり、外側鋼管102への内側鋼管103の挿入配置と断面方向に位置合わせとが容易となり、製造工程を簡略化できる。ここで、補強鋼棒104，104Ａを３本以上としたのは、内側鋼管103を補強鋼棒104，104Ａにより支持して位置決めするのに、３本以上の補強鋼棒104，104Ａがあれば、３点で支持して位置決めできるからであり、３本の補強鋼棒104，104Ａ，10Ａを用いる場合は、それらを円周方向１２０度の角度をなす位置に配置すればよい。また、４本の補強鋼棒104，104Ａ，104Ａ，104Ａが円周方向９０度の角度をなす位置に配置したから、鋼管102，103同士の位置決めを確実に行うことができる。 Further, as an effect of the embodiment regarding the load bearing material 101, the support upper portion 2U and the support lower portion 2S are composed of the load bearing material 101. The load bearing material 101 includes an outer steel pipe 102 and an inner side disposed in the outer steel pipe 102. Since the steel pipe 103, the reinforcing steel rod 104 disposed between the outer steel pipe 102 and the inner steel pipe 103, and the non-shrink mortar filled between the outer steel pipe 102 and the inner steel pipe 103, the outer and inner steel pipes 103 are provided. The non-shrink mortar is restrained by the steel pipes 102 and 103, the compressive stress is improved, and the reinforcing steel rods 104, 104 and 104 between the outer and inner steel pipes 102 and 103 are set to the tensile region side, thereby reinforcing the reinforcing steel. The rods 104, 104, 104 can improve the tensile stress on the tensile region side against the tensile force caused by bending, and can effectively improve the stress against the load. Moreover, the steel pipes 102, 103 and the steel rods 104, 104 can be improved. , 104, the load bearing material 101 for the support column 2 can be simply configured. Further, since the reinforcing steel rod 104 has a trapezoidal screw portion 111 that is uneven on the outer periphery, the trapezoidal screw portion 111 improves the adhesion between the reinforcing steel rod 104 and the non-shrink mortar, and the reinforcing steel rod 104 and the non-shrink mortar Can be integrated. Further, since the reinforcing steel rod 104 has the flat portions 112 and 112 that are continuous in the length direction on both sides, it is easy to fix to the steel pipes 102 and 103 using the flat portions 112 and 112, and the flat portion 112 is The surface is in contact with the steel pipes 102 and 103, and the operation of inserting the inner steel pipe 103 into the outer steel pipe 102 during manufacture becomes easy. In addition, since three or more reinforcing steel bars 104 and 104A are fixed to the inner surface of the outer steel pipe 102 or the outer surface of the inner steel pipe 103, the inner steel pipe 103 is inserted into the outer steel pipe 102. Therefore, the inner steel pipe 103 is inserted into the outer steel pipe 102 and the inner steel pipe 103 is easily inserted and positioned in the cross-sectional direction, and the manufacturing process can be simplified. Here, the reason why the number of reinforcing steel bars 104, 104A is three or more is that if the inner steel pipe 103 is supported and positioned by the reinforcing steel bars 104, 104A, there are three or more reinforcing steel bars 104, 104A. This is because the three reinforcing steel bars 104, 104A, and 10A can be positioned at a position that forms an angle of 120 degrees in the circumferential direction. Further, since the four reinforcing steel bars 104, 104A, 104A, 104A are arranged at a position that makes an angle of 90 degrees in the circumferential direction, the steel pipes 102, 103 can be positioned with certainty.

図１１〜図１２は本発明の実施例２を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。図１１には、前記支柱下部２Ｓの内部に充填材たる無収縮モルタル106を充填する際に用いる補助具31を示し、この補助具31は、前記支柱下部２Ｓと略同形で前記受筒部11内に挿脱可能な筒体32を備え、この筒体32の下端に蓋体33を設けて塞ぎ、この蓋体33の下面に前記支柱下部２Ｓの上端に当接して該支柱下部２Ｓの上部開口を塞ぐ当接部たるパッキン34を設け、前記蓋体33に筒体32内と支柱下部２Ｓの内部とを連通可能な充填孔たる充填筒35，36を設け、一方の充填筒35は前記外側充填空間105に対応し、他方の充填筒36は前記内側充填空間107に対応する。また、筒体32の上端には、前記鍔継手12に対応する鍔継手37が設けられ、この鍔継手37には、前記鍔継手12のボルト挿通孔14に対応して、ボルト挿通孔27Ａが穿設されているから、支柱下部２Ｓの受筒部11内に筒部32を挿入し、鍔継手37，12をボルト16とナットで仮固定でき、この状態で、蓋板33が支柱下部２Ｓの上部開口を塞ぐ。 11 to 12 show a second embodiment of the present invention. The same reference numerals are given to the same parts as those in the first embodiment, and detailed description thereof will be omitted. FIG. 11 shows an auxiliary tool 31 used when filling the non-shrink mortar 106, which is a filler, into the inside of the column lower part 2S. The auxiliary tool 31 is substantially the same shape as the column lower part 2S and the receiving tube part 11 is used. A cylindrical body 32 that can be inserted and removed is provided, and a lid 33 is provided at the lower end of the cylindrical body 32 to close it. The lower surface of the lid 33 abuts on the upper end of the lower column 2S, and the upper part of the lower column 2S. A packing 34 as a contact portion for closing the opening is provided, and filling cylinders 35 and 36 as filling holes capable of communicating the inside of the cylinder 32 and the inside of the column lower part 2S are provided in the lid body 33. Corresponding to the outer filling space 105, the other filling cylinder 36 corresponds to the inner filling space 107. Further, a flange joint 37 corresponding to the flange joint 12 is provided at the upper end of the cylindrical body 32, and a bolt insertion hole 27A corresponding to the bolt insertion hole 14 of the flange joint 12 is provided in the flange joint 37. Since it is perforated, the cylindrical portion 32 can be inserted into the cylindrical portion 11 of the lower column 2S and the joints 37 and 12 can be temporarily fixed with bolts 16 and nuts. Block the top opening of the.

図１２には、支柱上部２Ｕ，支柱下部２Ｓの下端に設ける仮蓋体41を示し、この仮蓋体41は、前記支柱２の直径より大きな蓋板42と、この蓋板42の上面に設けられ前記支柱上部２Ｕ，支柱下部２Ｓの下端を挿入する案内筒部43と、この案内筒部43内で前記蓋板42の上面に設けた当接部たるパッキン44とを備える。尚、前記蓋板42には、前記鍔継手13のボルト挿通孔14に対応して、ボルト挿通孔42Ａが穿設されているから、支柱上部２Ｕの下端に配置した前記仮蓋体41を、長いボルトを用いて、鍔継手13に仮固定することができる。 FIG. 12 shows a temporary lid 41 provided at the lower ends of the upper column 2U and the lower column 2S. The temporary lid 41 is provided on a lid plate 42 larger than the diameter of the column 2 and on the upper surface of the lid plate 42. The guide cylinder part 43 into which the lower ends of the column upper part 2U and the column lower part 2S are inserted, and the packing 44 as a contact part provided on the upper surface of the lid plate 42 in the guide cylinder part 43 are provided. Since the bolt insertion hole 42A is formed in the lid plate 42 corresponding to the bolt insertion hole 14 of the flange joint 13, the temporary lid body 41 arranged at the lower end of the column upper portion 2U is provided with It can be temporarily fixed to the flange joint 13 using a long bolt.

このように本実施例では、支柱下部２Ｓは内部に充填材たる無収縮モルタル106が充填され、支柱下部２Ｓの上端は受筒部11内に位置し、受筒部11内に挿脱可能な筒体32と、この筒体32の下端を塞ぐ蓋体34と、この蓋体34の下面に設けられ支柱下部２Ｓの上端に当接して該支柱下部２Ｓの上部開口を塞ぐ当接部たるパッキン34と、蓋体34に貫通形成され筒体32内と支柱下部２Ｓの内部とを連通可能な充填孔たる充填筒35，35Ａとを備えるから、筒体32を受筒部11の上部開口に挿入し、この上部開口をパッキン34により塞ぐ。そして、筒体32内にモルタル106を挿入することにより、支柱下部２Ｓ内にモルタル106が充填され、このように受筒部11の開口から離れた下方に位置する支柱下部２Ｓの上部開口に、モルタル106を簡便且つ確実に充填することができる。 As described above, in this embodiment, the support lower part 2S is filled with the non-shrink mortar 106 as a filling material, and the upper end of the support lower part 2S is located in the receiving cylinder part 11 and can be inserted into and removed from the receiving cylinder part 11. A cylindrical body 32, a lid 34 for closing the lower end of the cylindrical body 32, and a packing provided on the lower surface of the lid 34 as an abutting portion that abuts the upper end of the lower column 2S and closes the upper opening of the lower column 2S 34, and filling cylinders 35 and 35A that are formed through the lid 34 and communicate with the inside of the cylinder 32 and the inside of the column lower part 2S. The upper opening is closed by the packing 34. Then, by inserting the mortar 106 into the cylindrical body 32, the mortar 106 is filled into the support lower part 2S. Thus, in the upper opening of the support lower part 2S positioned below the opening of the receiving cylinder part 11, The mortar 106 can be filled easily and reliably.

図１３〜図１４は本発明の実施例３を示し、上記実施例１と同一部分に同一符号を付し、その詳細な説明を省略して詳述する。この例では、前記内側鋼管103に内部に、補強体120を挿入配置して該内側鋼管103に固定した後、内部に前記無収縮モルタル106を充填し、養生したものである。前記補強体120は、板材からなる３枚の補強リブ121，121，121をほぼ正三角形に配置し、これら補強リブ121，121，121の頂部121Ｓ，121Ｓ，121Ｓに帯状鋼板122，122，122を溶着してなる。また、前記帯状鋼板122の幅Ｗは、前記補強リブ121の厚さＴの２倍以上である。また、補強体120の帯状鋼板122，122，122は、前記内側鋼管103の内面と僅かな隙間を介して挿通可能に取付けられている。そして、製造時には、補強体120を組立てた後、内側鋼管103の一側開口から該補強体120を挿入配置し、溶接棒などが届く開口側で補強体120を内側鋼管103の内面に溶着固定した後、内部に無収縮モルタル106を充填する。また、図１４に示すように、補強リブ121の端部は溶接部123により帯状鋼板122に固定される。尚、補強リブ121，121，121の１つは、荷重を受けた場合の引張領域となる補強鋼棒104，104，104側に位置し、圧縮領域側に１つの頂部121Ｓが位置する。 13 to 14 show a third embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In this example, a reinforcing body 120 is inserted and arranged inside the inner steel pipe 103 and fixed to the inner steel pipe 103, and then the non-shrink mortar 106 is filled and cured. In the reinforcing body 120, three reinforcing ribs 121, 121, 121 made of plate material are arranged in a substantially equilateral triangle, and strip steel plates 122, 122, 122 are formed on the top portions 121S, 121S, 121S of the reinforcing ribs 121, 121, 121. It is made by welding. The width W of the strip-shaped steel plate 122 is twice or more the thickness T of the reinforcing rib 121. Further, the strip-shaped steel plates 122, 122, 122 of the reinforcing body 120 are attached to be able to be inserted through the inner surface of the inner steel pipe 103 through a slight gap. At the time of manufacturing, after assembling the reinforcing body 120, the reinforcing body 120 is inserted and arranged from one side opening of the inner steel pipe 103, and the reinforcing body 120 is welded and fixed to the inner surface of the inner steel pipe 103 at the opening side where the welding rod reaches. After that, the non-shrink mortar 106 is filled inside. Further, as shown in FIG. 14, the end of the reinforcing rib 121 is fixed to the strip-shaped steel plate 122 by a welded portion 123. One of the reinforcing ribs 121, 121, 121 is positioned on the side of the reinforcing steel rods 104, 104, 104, which is a tensile region when a load is applied, and one apex 121S is positioned on the compression region side.

このように本実施例においても、上記各実施例と同様な作用・効果を奏する。 As described above, this embodiment also has the same operations and effects as the above embodiments.

また、この例では、断面円形の内側鋼管103の内部に、断面三角形の補強リブ121，121，121を内接して設けると共に、補強リブ121，121，121の２つの頂点121Ｓを鋼管の引張領域側に配置したから、鋼管102内部の補強リブ121，121，121により、断面において内部のセメント混合材である無収縮モルタル106が拘束され、圧縮応力が向上し、引張領域側に補強リブ121，121の２つの頂点121Ｓ，121Ｓを連結するリブ121があるため、これが曲げにより生じる引張力に抗して引張領域側の引張応力が向上し、荷重に対する応力を効果的に向上することができる。 Also, in this example, reinforcing ribs 121, 121, 121 having a triangular cross section are provided inside the inner steel pipe 103 having a circular cross section, and two vertices 121S of the reinforcing ribs 121, 121, 121 are provided in the tensile region of the steel pipe. Since the non-shrinking mortar 106, which is an internal cement mixture, is constrained in the cross section by the reinforcing ribs 121, 121, 121 inside the steel pipe 102, the compressive stress is improved, and the reinforcing ribs 121, Since there are ribs 121 connecting the two apexes 121S and 121S of 121, the tensile stress on the tensile region side is improved against the tensile force generated by bending, and the stress against the load can be effectively improved.

以上、本発明の実施例について詳述したが、本発明は、前記実施例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、実施例では、斜面などの地山に支柱を建て込んだ例を示したが、コンクリートなどの基礎を設けた設置面に支柱を建て込んでもよい。 As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the embodiment, an example is shown in which a support is built on a natural ground such as a slope, but a support may be built on an installation surface provided with a foundation such as concrete.

本発明の実施例１を示す接合状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the joining state which shows Example 1 of this invention. 同上、接合状態を示す平断面図である。It is a plane sectional view showing a joined state same as the above. 同上、受筒部回りの断面図である。FIG. 4 is a cross-sectional view around the receiving tube portion. 同上、受筒部の平面図である。It is a top view of a receiving cylinder part same as the above. 同上、支柱下部の下端側を示し、図５（Ａ）は平断面図、図５（Ｂ）は縦断面図である。The lower end side of the lower part of the column is shown, FIG. 5 (A) is a plan sectional view, and FIG. 5 (B) is a longitudinal sectional view. 同上、支柱下部と支柱上部を構成する耐荷材の断面図である。It is sectional drawing of the load-bearing material which comprises a support | pillar lower part and a support | pillar upper part same as the above. 同上、補強鋼棒を固定した外側鋼管の断面図である。It is sectional drawing of the outer side steel pipe which fixed the reinforcement steel rod same as the above. 同上、補強鋼棒を示し、図８（Ａ）は正面図、図８（Ｂ）は側面図である。FIG. 8 (A) is a front view and FIG. 8 (B) is a side view. 同上、支柱の設置状態の断面図である。It is sectional drawing of the installation state of a support | pillar same as the above. 同上、防護体の断面図である。It is sectional drawing of a protector same as the above. 本発明の実施例２を示す製造用補助具の断面図である。It is sectional drawing of the auxiliary tool for manufacture which shows Example 2 of this invention. 同上、仮蓋体の断面図である。It is sectional drawing of a temporary lid body same as the above. 本発明の実施例３を示す耐荷材の断面図である。It is sectional drawing of the load bearing material which shows Example 3 of this invention. 同上、補強体の要部の断面図である。It is sectional drawing of the principal part of a reinforcement body same as the above.

Explanation of symbols

１防護柵（防護体）
２パイプ支柱
２Ｓ支柱下部
２Ｕ支柱上部
11 受筒部
12 鍔継手
13 鍔継手
17 肉厚部
18 接合剤
Ｙ斜面
31 補助具
32 筒体
33 蓋体
34 パッキン（当接部）
35 充填筒（充填孔）
35Ａ充填筒（充填孔）
101 耐荷材
102 外側鋼管
103 内側鋼管 1 Guard fence (protector)
2 Pipe support 2S Lower support 2U Upper support
11 Receiver section
12 Fitting
13 Fitting
17 Thick part
18 Bonding agent Y slope
31 Auxiliary tools
32 cylinder
33 lid
34 Packing (contact part)
35 Filling cylinder (filling hole)
35A Filling cylinder (filling hole)
101 Load-bearing material
102 outer steel pipe
103 Inside steel pipe

Claims

In a support column connecting a support column lower part fixed to the foundation and a support column upper part provided at the upper part of the support column lower part, a receiving tube part for inserting and fixing the lower end of the support column upper part is provided above the support column lower part. A prop of protective body such as avalanche and rock fall.

The avalanche according to claim 1, wherein the lower part of the support and the upper part of the support are joined by a bonding agent filled between the outer surface of the lower part of the support inserted into the receiving part and the inner surface of the receiving part.・ Protective body support such as rock fall.

The support post for avalanche / falling rock protection body according to claim 1 or 2, wherein the lower part of the support post and the receiving tube part are joined by a saddle joint.

The lower end of the upper portion of the support column and the upper end of the lower portion of the support column are arranged in the receiving tube portion, and a thick portion is formed in the receiving tube portion corresponding to the lower end of the upper portion of the support column and the upper end of the lower portion of the support column. The prop of a protective body such as an avalanche or falling rock according to any one of claims 1 to 3.

The lower portion of the support column is filled with a filler, the upper end of the lower support column is located in the receiving tube portion, a cylinder body that can be inserted into and removed from the receiving tube portion, and a lid member that closes the lower end of the tube body, A contact portion provided on the lower surface of the lid body that abuts the upper end of the lower portion of the support column and closes the upper opening of the lower portion of the support column, and is formed through the cover body so that the cylinder and the lower portion of the support column can communicate with each other. An auxiliary tool for manufacturing a support column for a protective body such as an avalanche or rock fall used for manufacturing the support column according to any one of claims 1 to 4.